DE2149404B2 - Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete - Google Patents

Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete

Info

Publication number
DE2149404B2
DE2149404B2 DE19712149404 DE2149404A DE2149404B2 DE 2149404 B2 DE2149404 B2 DE 2149404B2 DE 19712149404 DE19712149404 DE 19712149404 DE 2149404 A DE2149404 A DE 2149404A DE 2149404 B2 DE2149404 B2 DE 2149404B2
Authority
DE
Germany
Prior art keywords
reset
exposure
normal
adjusting knob
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19712149404
Other languages
German (de)
English (en)
Other versions
DE2149404A1 (de
Inventor
Hermann Dipl.-Ing. Dr.-Ing. 6100 Darmstadt Moser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to DE19712149404 priority Critical patent/DE2149404B2/de
Priority to NL7212953A priority patent/NL7212953A/xx
Priority to US00293838A priority patent/US3771867A/en
Priority to GB4527672A priority patent/GB1398576A/en
Priority to AU47326/72A priority patent/AU461626B2/en
Priority to FR7235123A priority patent/FR2155559A5/fr
Priority to JP10027772A priority patent/JPS5534422B2/ja
Publication of DE2149404A1 publication Critical patent/DE2149404A1/de
Publication of DE2149404B2 publication Critical patent/DE2149404B2/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Control Or Security For Electrophotography (AREA)
DE19712149404 1971-10-04 1971-10-04 Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete Ceased DE2149404B2 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19712149404 DE2149404B2 (de) 1971-10-04 1971-10-04 Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete
NL7212953A NL7212953A (enrdf_load_stackoverflow) 1971-10-04 1972-09-25
US00293838A US3771867A (en) 1971-10-04 1972-10-02 Exposure apparatus for electrophotographic reproduction machines
GB4527672A GB1398576A (en) 1971-10-04 1972-10-02 Exposure control apparatus for electrophotographic reproduction machines
AU47326/72A AU461626B2 (en) 1971-10-04 1972-10-03 Exposure apparatus for electrophotographic reproduction machines
FR7235123A FR2155559A5 (enrdf_load_stackoverflow) 1971-10-04 1972-10-04
JP10027772A JPS5534422B2 (enrdf_load_stackoverflow) 1971-10-04 1972-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712149404 DE2149404B2 (de) 1971-10-04 1971-10-04 Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete

Publications (2)

Publication Number Publication Date
DE2149404A1 DE2149404A1 (de) 1973-04-12
DE2149404B2 true DE2149404B2 (de) 1976-09-30

Family

ID=5821379

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712149404 Ceased DE2149404B2 (de) 1971-10-04 1971-10-04 Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete

Country Status (7)

Country Link
US (1) US3771867A (enrdf_load_stackoverflow)
JP (1) JPS5534422B2 (enrdf_load_stackoverflow)
AU (1) AU461626B2 (enrdf_load_stackoverflow)
DE (1) DE2149404B2 (enrdf_load_stackoverflow)
FR (1) FR2155559A5 (enrdf_load_stackoverflow)
GB (1) GB1398576A (enrdf_load_stackoverflow)
NL (1) NL7212953A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123452A1 (de) * 1980-06-13 1982-02-25 Minolta Camera K.K., Osaka Mechanische anordnung fuer eine betaetigungsvorrichtung

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502548A (enrdf_load_stackoverflow) * 1973-05-08 1975-01-11
US3967895A (en) * 1974-09-18 1976-07-06 Xerox Corporation Illumination control system
DE2528925A1 (de) * 1975-06-28 1977-01-13 Agfa Gevaert Ag Fotokopiergeraet
JPS5229225A (en) * 1975-08-29 1977-03-04 Ricoh Co Ltd Exposure adjustable device of an automatic return type
CA1091756A (en) 1975-10-14 1980-12-16 Eastman Kodak Company Electrophotographic apparatus having compensation for changes in sensitometric properties of photoconductors
JPS5841497B2 (ja) * 1976-05-31 1983-09-12 ミノルタ株式会社 スリット露光型複写機における露光量調整装置
IT1085310B (it) * 1977-02-02 1985-05-28 Grafosol Spa Dispositivo di illuminazione e regolazione della quantita' di luce,per macchine per la preparazione di matrici da stampa per via elettrostatica
DE2839076C3 (de) * 1977-09-09 1998-01-29 Canon Kk Kopiergerät
JPS5442149A (en) * 1977-09-09 1979-04-03 Canon Inc Image former
JPS5492223A (en) * 1977-12-29 1979-07-21 Konishiroku Photo Ind Co Ltd Magnification variable type copier of automatic return type
DE2916243A1 (de) * 1978-04-25 1979-11-08 Iwatsu Electric Co Ltd Belichtungsvorrichtung fuer eine elektrographische kopiervorrichtung
DE2954647C2 (de) * 1978-06-30 1994-03-03 Canon Kk Kopiergerät mit einstellbarer Lichtquellenleistung
GB2024438B (en) 1978-06-30 1983-04-27 Canon Kk Electrophotographic copier
JPS557709A (en) * 1978-06-30 1980-01-19 Canon Inc Exposure control unit of copying machine
JPS55101965A (en) * 1979-01-30 1980-08-04 Ricoh Co Ltd Aperture control unit in variable power copying machine
JPS5621165A (en) * 1979-07-28 1981-02-27 Mita Ind Co Ltd Exposure adjusting device of electrostatic type copying machine
JPS56164365A (en) * 1980-05-23 1981-12-17 Fuji Xerox Co Ltd Exposure adjusting device for copying machine
JPS61121760U (enrdf_load_stackoverflow) * 1985-01-17 1986-07-31
JPS61119160U (enrdf_load_stackoverflow) * 1985-12-19 1986-07-28
US5036552A (en) * 1990-02-22 1991-08-06 Deakyne Ralph V Fastener
US7344255B2 (en) * 2004-04-01 2008-03-18 Nisca Corporation Light amount adjusting apparatus and projector using the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107578A (en) * 1959-12-05 1963-10-22 Agfa Ag Filter-operating arrangement for a photographic printing apparatus
GB1074583A (en) * 1963-01-23 1967-07-05 Eastman Kodak Co Sheet-handling apparatus
US3602579A (en) * 1969-11-17 1971-08-31 Film Editing Equipment Corp Electromechanical light valve system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123452A1 (de) * 1980-06-13 1982-02-25 Minolta Camera K.K., Osaka Mechanische anordnung fuer eine betaetigungsvorrichtung

Also Published As

Publication number Publication date
DE2149404A1 (de) 1973-04-12
FR2155559A5 (enrdf_load_stackoverflow) 1973-05-18
NL7212953A (enrdf_load_stackoverflow) 1973-04-06
GB1398576A (en) 1975-06-25
JPS5534422B2 (enrdf_load_stackoverflow) 1980-09-06
US3771867A (en) 1973-11-13
AU4732672A (en) 1974-04-11
JPS4846341A (enrdf_load_stackoverflow) 1973-07-02
AU461626B2 (en) 1975-05-29

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Legal Events

Date Code Title Description
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